* {
    margin: 0;
    padding: 0;
}

body {
    background: grey url(./wall.jpg) no-repeat center center; 
    background-size: cover;
}

a {
    text-decoration: none;
}

kbd {
    display: inline-block; 
    text-transform: uppercase; 
    position: relative;
    width: 4em;
    height: 4em;
}

kbd > .text {
    position: absolute;
    left: 4px;
    top: 3px;
} 

.key {
    width: 56px;
    height: 45px;
    border: 1px solid red;
    background: linear-gradient(to bottom, #292929 0%,#111111 100%);
    color: #C5C5C5;
    border-radius: 0.3em;
    box-sizing: border-box;
    cursor: pointer;
    -webkit-user-select: none;
    border: 1px solid #444;
    box-shadow: 0 0.2em 0 0.05em #222;
    border-bottom-color: #555;
    margin: 0 8px;
    font-family: Helvetica;
    font-size: 16px
}

.key:active{
    background: #2a2a2a;
    color: #aaa;
    top: 0.2em;
    box-shadow: 0 0 0 0.05em black;
}

.row {
    margin:16px;
}

kbd > button{
    position: absolute;
    right: 0;
    bottom: 0;
    display: none;
}

kbd:hover > button {
    display: inline-block;
}


main {
    text-align: center;    
    display: flex;
    justify-content: center;
    align-content: center;
    height: 100vh;
}

.wrapper{
    margin: auto 0 ;
	background: rgba(255,255,255,0.2);
	border-radius: 10px;
}

#main {
    display: inline-block;
}

#main > div:nth-child(2){
    margin-left: -16px;
}

#main > div:nth-child(3){
    margin-left: -86px;
}

.key img{
    width: 16px; 
    height: 16px; 
    position: absolute; 
    left: 4px; 
    bottom: 2px;}